package com.itheima.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.itheima.common.R;
import com.itheima.entity.User;
import com.itheima.service.UserService;
import com.itheima.utils.SMSUtils;
import com.itheima.utils.ValidateCodeUtils;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpSession;
import java.util.Map;
import java.util.concurrent.TimeUnit;

@RestController
@RequestMapping("/user")
@Slf4j
public class UserController {
    @Autowired
    private UserService userService;
    @Autowired
    private RedisTemplate redisTemplate;

    /**
     * 生成验证码
     *
     * @param user
     * @param session
     * @return
     */
    @PostMapping("/sendMsg")
    public R<String> sendMsg(@RequestBody User user, HttpSession session) {
        log.info("user:{}", user);
        //1.获取手机号
        String phone = user.getPhone();
        if (StringUtils.isNotEmpty(phone)) {
            //2.生成验证码
            String code = ValidateCodeUtils.generateValidateCode(4).toString();
            log.info("code:{}", code);

            //3.调用阿里云api发送短信
            SMSUtils.sendMessage("孙综鸿项目","SMS_460655378",phone,code);


            //4.将生成的验证码保存到session
//            session.setAttribute(phone,code);

            //4升级.将生成的验证码保存到redis中
            redisTemplate.opsForValue().set(phone,code,5, TimeUnit.MINUTES);
            return R.success("短信发送成功");

        }
        return R.error("短信发送失败");
    }

    /**
     * 登录验证
     *
     * @param map
     * @param session
     * @return
     */
    @PostMapping("/login")
    public R<User> login(@RequestBody Map map, HttpSession session) {
        log.info(map.toString());
        //获取手机号
        String phone = map.get("phone").toString();
        //获取验证码
        String code = map.get("code").toString();
        //获取session中的验证码
//        Object codeInSession = session.getAttribute(phone);

        //从redis中获取验证码
        Object codeInSession = redisTemplate.opsForValue().get(phone);

        //比对
        if (codeInSession!=null &&codeInSession.equals(code)){
            //比对通过
            //判断手机号是否为新用户，如果是新用户，自动注册
            LambdaQueryWrapper<User> queryWrapper = new LambdaQueryWrapper<>();
            queryWrapper.eq(User::getPhone,phone);
            User user = userService.getOne(queryWrapper);

            if (user ==null){
        // 新用户
               user = new User();
                user.setPhone(phone);
                user.setStatus(1);
                userService.save(user);
            }
            session.setAttribute("user",user.getId());

            //如果用户登录成功，删除redis缓存的验证码
            redisTemplate.delete(phone);


            return R.success(user);
        }
        return R.error("登录失败");
    }

    /**
     * 用户退出登录
     * @param session
     * @return
     */
    @PostMapping("/loginout")
    public R<String> loginOut(HttpSession session){
session.removeAttribute("user");
        return R.success("退出登录成功");
    }
}
